He shot dead Bill Cavanagh and Carmelita Lee in their home in 1984 after an altercation. Three years later he stabbed Reynette Holford more than 30 times with a screwdriver after allegedly attempting to rob an apartment.
He remained a free man as police could not find the culprit. On Valentine's Day in 1994, Lindsey shot dead Fatma Ozanal and stabbed Kerrie Pang to death, before burning down their Gladesville massage parlour. Lynda divorced a 'changed' Lindsey after he violently assaulted her, meaning Elisha only saw her father on odd weekends.
His only child, 34-year-old Elisha, says she hid the horrific truth and 'created a layer of secrecy' for decades because of the torment that followed its memories.
Her remains were found on the Avery family property.
He told her he would tell her why he did it when she was older.
He eventually revealed that he believed his meaning of life was to stand up to bullies.
They asked her and her mother a number of questions about their father.
A few hours later Elisha was watching the Sydney news, which aired in the Western Australia capital late at night, and discovered the awful truth about her father.'There's a part of me that will never be able to reconcile what he's done,' she told Australian Story.'The man who raised me and nurtured me is not a mass murderer, but he is that too.
The US Seventh Circuit Court of Appeals reversed that decision on 8 December and Dassey will continue to serve his life sentence.